IRON MOUNTAIN INC — Director's Dealing 2016

Jun 1, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IRON MOUNTAIN INC (IRM)
CIK: 0001020569
Period of Report: 2016-05-27

Reporting Person: Keddy Patrick J (Exec.VP,GM,N.America,W.Europe)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-27	Common Stock, par value $.01 per share	M	1488	—	Acquired	9983	Direct
2016-05-27	Common Stock, par value $.01 per share	F	699	$36.80	Disposed	9284	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-05-27	Restricted Stock Units	$	M	1488	Disposed		Common Stock (1488)	Direct

Footnotes

F1: This acquisition is reported to reflect the partial vesting of restricted stock units ("RSUs") previously granted to the Reporting Person on May 27, 2015.

F2: Each RSU represents a contingent right to receive one share of Iron Mountain Incorporated common stock ("Common Stock").

F3: The RSUs, representing a contingent right to receive a total of 4,470 shares of Common Stock, were granted to the Reporting Person on May 27, 2015 and vest in three substantially equal annual installments beginning on the first anniversary of the grant date.